Stay towards the middle. The fast moving ones will clear you almost every time after like 40 or so.
Also, space button is working fine. Thumbs up to let develops know you aren't a moron.
Why would you badge a game that can't even be played? Spent the last 2 hours looking through the few worlds that aren't full to find there are no areas you can build ANYWHERE. Everything is "too close to nearby colonies." This is BS Kong.
Fun game overall, +3 instead of +5 though as the scrolling levels are horrible. As mentioned before, the response is slow, and the execution when trying to flank or attack multiple enemies is difficult due to the scrolling alone. A bigger box, or zoomed out view would be much better than scrolling on a small flash game.
Hardest for me was the spiders...until I realized that holding for 1/2 second gives AOE. Other than that the second whack a mole took a little while. It's all do-able though.